In a recent campaign, ME Elecmetal's customized liner solution helped a mining operation process 11.08 million tons, a dramatic increase from the 4.54 million tons achieved with OEM liners in the previous campaign.
The client identified a pressing need to enhance the performance of their primary crusher, which was experiencing frequent unscheduled shutdowns due to excessive thermal loading—resulting in significant losses in operating hours. Compounding the issue was an unpredictable variation in pole height, further complicating operational planning.
Several recurring issues were directly impacting the crusher's efficiency and reliability:
- Localized wear on the lower mantle, particularly in the area known as the "ducktail," leading to profile loss, reduced capacity, and increased exposure to premature failures.
- Critical thermal increases, with thermal capacity surges exceeding 80%, forcing emergency shutdowns.
- Variability in pole height, which complicated operational planning and generated uncertainty in equipment performance.
These factors led to a highly unstable operation with inconsistent liner performance, inefficient fines evacuation, and diminished overall ore processing. As a result, plant throughput was limited—failing to exceed seven million tons per campaign and reducing the effective treatment rate.
In response, ME Elecmetal partnered with the client to analyze the wear behavior of the OEM-supplied liners (mantle and concaves) and assess operational conditions. This opened the door to reengineering the system to improve fines evacuation and increase ore throughput (tph).
Through a collaborative and data-driven approach—centered on analysis, diagnostics, and co-design with the client's operations team—ME Elecmetal developed a comprehensive solution to significantly improve the performance of the primary crusher. The proposal was built on three strategic pillars:
1. Customized Mantle Design with Conical Profile
ME Elecmetal reengineered the lower mantle, introducing an optimized conical profile designed to improve the flow of fine material evacuation, reduce mineral accumulation in the crushing chamber, and decrease excessive contact points that accelerated wear. This redesign aimed to improve overall crushing efficiency by lowering internal pressure and increasing the equipment's effective processing capacity.
2. Optimized Alloy Selection – M3 (18% Mn)
Given the abrasive characteristics of the processed ore, ME Elecmetal selected its M3 alloy, composed of 18% manganese, offering superior resistance to impact and friction. The benefits of this alloy include extended wear life of critical crusher components, a reduced wear rate per ton of processed material, and sustained operational geometry that contributes to consistent performance over time.
3. Wear Monitoring with QuickScan Crusher Technology
To ensure continuous performance tracking, ME Elecmetal implemented its QuickScan Crusher 3D scanning technology. This system provides high-resolution wear data on mantles, concaves, and pole height variation—enabling timely and informed decisions on component replacement and predictive insights into future liner behavior and equipment performance.
Together, these enhancements laid the foundation for a more efficient, stable, and predictable crushing operation—delivering measurable improvements in both productivity and equipment reliability.
Benefits
Reliable Performance
Continuous, predictable performance without unplanned failures.
Increased Productivity
More ore processed with fewer resources, including reduced time, labor, and energy.
Reduced Carbon Footprint
Fewer replacements per campaign means less steel production, transportation, energy use, and waste—significantly reducing environmental impact.
Enhanced Safety
Reduced maintenance frequency lowers worker exposure to high-risk tasks.
“This success story isn't simply about changing liners; it represents the materialization of ME Elecmetal's comprehensive offering, based on a differentiated value proposition. This proposition considers elements such as advanced diagnosis and customization, innovation in design and materials, continuous monitoring, control and technical support, and a long-term strategic relationship with the client.”
Results
ME Elecmetal's solution delivered transformative results, significantly improving the primary crusher's performance across multiple dimensions.
Substantial Increase in Liner Lifespan
- Mantles: Average service life increased from 3 to 8 months, resulting in reduced maintenance frequency, lower change-out risks, and improved operational availability.
- Concaves: Durability extended from 6 to 13 months, effectively doubling performance and further decreasing downtime and maintenance costs.
Major Reduction in Unscheduled Downtime Due to Thermal Overload
Historical thermal surges exceeding 80% were brought down to a stable 17%, enabling the elimination of shutdowns caused by overheating, improved equipment reliability and continuous operation, and enhanced protection of critical crusher components.
Significant Increase in Tonnage Processed per Campaign
Production rose to 11.08 million tons per campaign, nearly doubling the 4.54 million tons achieved with the previous OEM liner setup—representing a substantial boost in processing efficiency and throughput.
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